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add array
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‎Array/array-leetcode-list.md

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>下面是总结的数组类题目:
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#### K-SUM类题目
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| 序号 | 题目 | 难度 | 代码 |
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| ---- | ------------------------------------------------------------ | ------ | ----------------- |
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| 1 | [Two Sum ](https://leetcode.com/problems/two-sum) | easy | python、java、c++ |
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| 167 | [Two Sum II - Input array is sorted ](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted) | Easy | python、java、c++ |
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| 15 | [3Sum ](https://leetcode.com/problems/3sum) | Medium | python、java、c++ |
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| 16 | [3Sum Closest ](https://leetcode.com/problems/3sum-closest) | Medium | python、java、c++ |
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| 259 | [3Sum Smaller ](https://leetcode.com/problems/3sum-smaller) | Medium | python、java、c++ |
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| 18 | [4Sum ](https://leetcode.com/problems/4sum) | Medium | python、java、c++ |
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#### 区间问题
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| 序号 | 题目 | 难度 | 代码 |
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| ---- | ------------------------------------------------------------ | ------ | :---------------- |
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| 56 | [Merge Intervals ](https://leetcode.com/problems/merge-intervals) | Medium | python、java、c++ |
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| 57 | [Insert Interval ](https://leetcode.com/problems/insert-interval) | Hard | python、java、c++ |
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| 252 | [Meeting Rooms](https://leetcode.com/problems/meeting-rooms/) | easy | python、java、c++ |
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| 253 | [Meeting Rooms II](https://leetcode.com/problems/meeting-rooms-ii/) | medium | python、java、c++ |
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| 352 | [Data Stream as Disjoint Intervals](https://leetcode.com/problems/data-stream-as-disjoint-intervals/) | hard | python、java、c++ |
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#### 子数组类题目
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 78 | [Subsets](https://leetcode.com/problems/subsets/) | medium | python、java、c++ |
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| 90 | [Subsets II](https://leetcode.com/problems/subsets-ii/) | medium | python、java、c++ |
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| 53 | [Maximum Subarray](https://leetcode.com/problems/maximum-subarray/) | easy | python、java、c++ |
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| 152 | [Maximum Product Subarray](https://leetcode.com/problems/maximum-product-subarray/) | medium | python、java、c++ |
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| 239 | [Sliding Window Maximum](https://leetcode.com/problems/sliding-window-maximum/) | hard | python、java、c++ |
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| 295 | [Find Median from Data Stream](https://leetcode.com/problems/find-median-from-data-stream/) | hard | python、java、c++ |
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| 228 | [Summary Ranges](https://leetcode.com/problems/summary-ranges/) | medium | python、java、c++ |
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| 163 | [Missing Ranges](https://leetcode.com/problems/missing-ranges/) | medium | python、java、c++ |
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| 325 | [Maximum Size Subarray Sum Equals k](https://leetcode.com/problems/maximum-size-subarray-sum-equals-k/) | medium | python、java、c++ |
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| 209 | [Minimum Size Subarray Sum](https://leetcode.com/problems/minimum-size-subarray-sum/) | medium | python、java、c++ |
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| 238 | [Product of Array Except Self](https://leetcode.com/problems/product-of-array-except-self/) | medium | python、java、c++ |
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| 128 | [Longest Consecutive Sequence ](https://leetcode.com/problems/longest-consecutive-sequence) | Hard | python、java、c++ |
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#### Rotate类题目
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 48 | [Rotate Image ](https://leetcode.com/problems/rotate-image) | Medium | python、java、c++ |
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| 89 | [Search in Rotated Sorted Array ](https://leetcode.com/problems/search-in-rotated-sorted-array) | Medium | python、java、c++ |
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| 189 | [Rotate Array ](https://leetcode.com/problems/rotate-array) | Easy | python、java、c++ |
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| 81 | [Search in Rotated Sorted Array II ](https://leetcode.com/problems/search-in-rotated-sorted-array-ii) | Medium | python、java、c++ |
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#### 数组排序
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 88 | [Merge Sorted Array ](https://leetcode.com/problems/merge-sorted-array) | Easy | python、java、c++ |
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| 75 | [Sort Colors ](https://leetcode.com/problems/sort-colors) | Medium | python、java、c++ |
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| 283 | [Move Zeroes ](https://leetcode.com/problems/move-zeroes) | Easy | python、java、c++ |
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| 376 | [Wiggle Subsequence](https://leetcode.com/problems/wiggle-subsequence/) | medium | python、java、c++ |
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| 280 | [Wiggle Sort](https://leetcode.com/problems/wiggle-sort/) | medium | python、java、c++ |
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| 324 | [Wiggle Sort II](https://leetcode.com/problems/wiggle-sort-ii/) | medium | python、java、c++ |
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| 215 | [Kth Largest Element in an Array ](https://leetcode.com/problems/kth-largest-element-in-an-array) | medium | python、java、c++ |
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| 287 | [Find the Duplicate Number](https://leetcode.com/problems/find-the-duplicate-number) | medium | python、java、c++ |
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| 334 | [Increasing Triplet Subsequence ](https://leetcode.com/problems/increasing-triplet-subsequence) | medium | python、java、c++ |
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| 400 | [Nth Digit ](https://leetcode.com/problems/nth-digit) | easy | python、java、c++ |
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| 387 | [First Unique Character in a String ](https://leetcode.com/problems/first-unique-character-in-a-string) | easy | python、java、c++ |
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| 164 | [Maximum Gap ](https://leetcode.com/problems/maximum-gap) | hard | python、java、c++ |
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| 347 | [Top K Frequent Elements ](https://leetcode.com/problems/top-k-frequent-elements) | medium | python、java、c++ |
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| 243 | [Shortest Word Distance](https://leetcode.com/problems/shortest-word-distance) | easy | python、java、c++ |
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| 244 | [Shortest Word Distance II ](https://leetcode.com/problems/shortest-word-distance-ii) | medium | python、java、c++ |
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| 245 | [Shortest Word Distance III](https://leetcode.com/problems/shortest-word-distance-iii) | medium | python、java、c++ |
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#### 双指针问题
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 11 | [Container With Most Water ](https://leetcode.com/problems/container-with-most-water) | Medium | python、java、c++ |
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| 41 | [First Missing Positive ](https://leetcode.com/problems/first-missing-positive) | Hard | python、java、c++ |
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| 42 | [Trapping Rain Water ](https://leetcode.com/problems/trapping-rain-water) | Hard | python、java、c++ |
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| 84 | [Largest Rectangle in Histogram ](https://leetcode.com/problems/largest-rectangle-in-histogram) | Hard | python、java、c++ |
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| 85 | [Maximal Rectangle ](https://leetcode.com/problems/maximal-rectangle) | Hard | python、java、c++ |
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| 243 | [Shortest Word Distance ](https://leetcode.com/problems/shortest-word-distance) | Easy | python、java、c++ |
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| 244 | [Shortest Word Distance II](https://leetcode.com/problems/shortest-word-distance-ii) | medium | python、java、c++ |
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| 245 | [Shortest Word Distance III ](https://leetcode.com/problems/shortest-word-distance-iii) | Medium | python、java、c++ |
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#### 二维数组
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 48 | [Rotate Image ](https://leetcode.com/problems/rotate-image) | Medium | python、java、c++ |
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| 54 | [Spiral Matrix ](https://leetcode.com/problems/spiral-matrix) | Medium | python、java、c++ |
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| 73 | [Set Matrix Zeroes ](https://leetcode.com/problems/set-matrix-zeroes) | Medium | python、java、c++ |
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| 311 | [Sparse Matrix Multiplication ](https://leetcode.com/problems/sparse-matrix-multiplication) | medium | python、java、c++ |
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| 36 | [Valid Sudoku ](https://leetcode.com/problems/valid-sudoku) | meidum | python、java、c++ |
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| 37 | [Sudoku Solver ](https://leetcode.com/problems/sudoku-solver) | hard | python、java、c++ |
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#### 动态规划
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 62 | [Unique Paths ](https://leetcode.com/problems/unique-paths) | Medium | python、java、c++ |
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| 63 | [Unique Paths II ](https://leetcode.com/problems/unique-paths-ii) | Medium | python、java、c++ |
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| 64 | [Minimum Path Sum ](https://leetcode.com/problems/minimum-path-sum) | Medium | python、java、c++ |
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| 120 | [Triangle ](https://leetcode.com/problems/triangle) | Medium | python、java、c++ |
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#### 二叉树
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 105 | [Construct Binary Tree from Preorder and Inorder Traversal ](https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal) | Medium | python、java、c++ |
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| 106 | [Construct Binary Tree from Inorder and Postorder Traversal ](https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal) | Medium | python、java、c++ |
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#### Math
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 66 | [Plus One ](https://leetcode.com/problems/plus-one) | Easy | python、java、c++ |
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| 118 | [Pascal's Triangle ](https://leetcode.com/problems/pascals-triangle) | Easy | python、java、c++ |
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| 119 | [Pascal's Triangle II ](https://leetcode.com/problems/pascals-triangle-ii) | Easy | python、java、c++ |
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####基础
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##### 基础题目
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 217 | [Contains Duplicate ](https://leetcode.com/problems/contains-duplicate) | Easy | python、java、c++ |
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| 219 | [Contains Duplicate II ](https://leetcode.com/problems/contains-duplicate-ii) | Easy | python、java、c++ |
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| 380 | [Insert Delete GetRandom O(1) ](https://leetcode.com/problems/insert-delete-getrandom-o1) | Medium | python、java、c++ |
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| 381 | [Insert Delete GetRandom O(1) - Duplicates allowed ](https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed) | Hard | python、java、c++ |
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| 31 | [Next Permutation ](https://leetcode.com/problems/next-permutation) | Medium | |
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##### Search类题
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 33 | [Search in Rotated Sorted Array ](https://leetcode.com/problems/wiggle-subsequence/) | Medium | 代码 |
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| 81 | [Search in Rotated Sorted Array II ](https://leetcode.com/problems/sort-colors) | Medium | |
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| 34 | [Find First and Last Position of Element in Sorted Array ](https://leetcode.com/problems/wiggle-sort/) | Medium | python、java、c++ |
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| 35 | [Search Insert Position ](https://leetcode.com/problems/next-permutation) | Easy | python、java、c++ |
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| 74 | [Search a 2D Matrix ](https://leetcode.com/problems/combination-sum) | Medium | python、java、c++ |
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| 79 | [Word Search ](https://leetcode.com/problems/combination-sum-ii) | Medium | python、java、c++ |
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| 153 | [Find Minimum in Rotated Sorted Array ](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array) | Medium | python、java、c++ |
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| 154 | [Find Minimum in Rotated Sorted Array II ](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii) | Hard | python、java、c++ |
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| 39 | [Combination Sum ](https://leetcode.com/problems/largest-rectangle-in-histogram) | Medium | python、java、c++ |
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| 40 | [Combination Sum II ](https://leetcode.com/problems/combination-sum-ii) | Medium | python、java、c++ |
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| 216 | [Combination Sum III ](https://leetcode.com/problems/combination-sum-iii) | Medium | python、java、c++ |
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| 45 | [Jump Game II ](https://leetcode.com/problems/jump-game-ii) | Hard | python、java、c++ |
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| 55 | [Jump Game ](https://leetcode.com/problems/jump-game) | Medium | python、java、c++ |
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| 121 | [Best Time to Buy and Sell Stock ](https://leetcode.com/problems/best-time-to-buy-and-sell-stock) | Easy | python、java、c++ |
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| 122 | [Best Time to Buy and Sell Stock II ](https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii) | Easy | python、java、c++ |
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| 123 | [Best Time to Buy and Sell Stock III ](https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii) | Hard | python、java、c++ |
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| 126 | [Word Ladder II ](https://leetcode.com/problems/word-ladder-ii) | Hard | python、java、c++ |
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| 162 | [Find Peak Element ](https://leetcode.com/problems/find-peak-element) | Medium | python、java、c++ |
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| 169 | [Majority Element ](https://leetcode.com/problems/majority-element) | Easy | python、java、c++ |
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| 229 | [Majority Element II ](https://leetcode.com/problems/majority-element-ii) | Medium | python、java、c++ |
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##### Remove类题目
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 26 | [Remove Duplicates from Sorted Array ](https://leetcode.com/problems/remove-duplicates-from-sorted-array) | Easy | python、java、c++ |
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| 27 | [Remove Element ](https://leetcode.com/problems/remove-element) | Easy | python、java、c++ |
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| 80 | [Remove Duplicates from Sorted Array II ](https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii) | Medium | python、java、c++ |
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#### 提高题目
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 4 | [Median of Two Sorted Arrays ](https://leetcode.com/problems/median-of-two-sorted-arrays) | Hard | python、java、c++ |
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| 289 | [Game of Life ](https://leetcode.com/problems/game-of-life) | Medium | python、java、c++ |
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#### 综合题
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| 序号 | 题目 | 难度 | 代码 |
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| ------------ | ------------------------------------------------------------ | ------ | ----------------- |
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| 274 | [H-Index](https://leetcode.com/problems/h-index/) | medium | python、java、c++ |
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| 376 | [Wiggle Subsequence](https://leetcode.com/problems/wiggle-subsequence) | medium | python、java、c++ |
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| 277 | [Find the Celebrity ](https://leetcode.com/problems/game-of-life) | medium | python、java、c++ |
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| 370 | [Range Addition ](https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed) | medium | python、java、c++ |
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| 296 | [Best Meeting Point](https://leetcode.com/problems/best-meeting-point) | hard | python、java、c++ |

‎Array/interval/1

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‎Array/interval/56-MergeIntervals.py

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‎Array/subsets/78-Subsets.py

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